The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 1984
Filed:
May. 16, 1983
Applicant:
Inventors:
Dennis Neigel, Whitehouse Station, NJ (US);
John Kancylarz, Plainsboro, NJ (US);
Assignee:
National Starch and Chemical Corporation, Bridgewater, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
527300 ; 527312 ; 527313 ; 424362 ; 424D / ; 523105 ;
Abstract
Graft copolymers of cellulose derivatives and N,N-diallyl,N-N-dialkyl ammonium chlorides or bromides are prepared using a dry or substantially solvent-free system by impregnating a concentrated aqueous solution of the N,N-diallyl-N,N-dialkyl ammonium halide, water soluble surfactant and catalyst onto the dry cellulose substrate, heating the reaction mass for sufficient time to achieve polymerization and then drying.
Neigel, Dennis. (1984). Process for the preparation of graft copolymers of cellulose derivatives (U.S. Patent No. 4464523). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4464523
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile